/*
 * @file
 * @author  TPOC: contact@palisade-crypto.org
 *
 * @copyright Copyright (c) 2019, New Jersey Institute of Technology (NJIT)
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution. THIS SOFTWARE IS
 * PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
/*
 *  This file tests utilities functions
 *
 */

#include <fstream>
#include <iostream>
#include "include/gtest/gtest.h"

#include "utils/utilities.h"

using namespace std;
using namespace lbcrypto;

TEST(Utilities, IsPowerOfTwo) {
  std::vector<usint> powers_of_two{1,   2,    4,    8,    16,    32,
                                   512, 1024, 2048, 4096, 16384, 32768};
  std::vector<usint> not_powers_of_two{0, 3, 5, 7, 9, 31, 33, 1025, 4095};

  for (auto power_of_two : powers_of_two) {
    EXPECT_TRUE(IsPowerOfTwo(power_of_two));
  }

  for (auto not_power_of_two : not_powers_of_two) {
    EXPECT_FALSE(IsPowerOfTwo(not_power_of_two));
  }
}
